Bell 214 accident near Dongducheon, Kr, June 13, 2017
On June 13, 2017 at about 6:10 pm local time, a Bell 214 (helicopter), registered HL9157, was substantially damaged in an accident during approach near Dongducheon. 2 people were seriously injured.
The NTSB's probable cause their words, unchanged
The NTSB has not yet published a probable cause for this accident. Investigations usually take one to two years; this page updates when the final report is released.
Source: NTSB aviation accident database, copy made November 2, 2026. Docket and reports at the NTSB.
What the record shows
- Date
- June 13, 2017 · about 6:10 pm local time · cases in 2017
- Place
- Dongducheon, South Korea
- Type
- Accident
- Injuries
- 2 people were seriously injured.
- Weather
- not recorded
- Aircraft
- Bell 214 B · all 214s on the register
- Registration
- HL9157 · registered outside the United States · serial 28006
- Damage
- Substantial damage
- Flight
- Flight
The NTSB's narrative preliminary · quoted from the NTSB record
On June 13, 2017, about 1810 local time, a Republic of Korea registered Bell 214B helicopter, HL9157, operated by UB Air, impacted remote mountainous terrain about 3 miles northeast of Dongducheon, Republic of Korea, during the approach to a drop zone while conducting an external load operation. The helicopter sustained substantial damage and the 2 pilots received serious injuries. The investigation is under the jurisdiction of the Aviation and Railway Accident Investigation Board, Republic of Korea. As the state of manufacture of the helicopter and the engine, the National Transportation Safety Board has designated a US accredited representative to assist the Aviation and Railway Accident Investigation Board. Further information pertaining to this accident may be obtained from: Aviation and Railway Accident Investigation Board Ministry of Land, Infrastructure and Transport #94 Dasom-Ro 2 Sejong Self-Governing City, 339-012 Republic of Korea Phone: +82 (44) 201-5447 Fax: +82 (44) 201-5698 http://araib.molit.go.kr/intro.do
The complete narrative as the NTSB published it. The NTSB's docket holds the report as a PDF and any photographs, statements and other documents from the investigation.
The factual record from the NTSB's investigation tables, in plain English
What happened, in order
- Unknown or undetermined during approach defining event
The aircraft
- Landing gear: fixed
- Not recorded
Weather at the time
- Temperature: 0°F (-18°C), dew point 0°F (-18°C)
Injuries
| Fatal | Serious | Minor | None | |
|---|---|---|---|---|
| Flight crew | 2 |
Documents from the investigation the NTSB's docket: the evidence folder behind the report
The NTSB has not released the docket for this case yet. The docket, the folder of records gathered during an investigation (maintenance records, photographs, witness statements, examinations), is usually released when the investigation is nearly complete, and the list here is refreshed when it appears. Check at the NTSB.
Connections how this case links to the rest of the register
The whole map of how records connect · these connections as data: /graph/accident/ANC17WA031.json.
The bigger picture in Aviation Analytics: accidents over time since 1982, by model, by phase of flight and conditions, by place and on the map.
Everything on this page comes from the NTSB's public records. The narrative, probable cause and findings are the NTSB's own words; the coded tables behind the report are written out in plain English, with pilots' ages, home towns and medical details left out. The documents and photographs are the NTSB's docket, shown as the NTSB released them. This site's own text does not name anyone involved, its policy at this time. A preliminary report can change; the final report usually follows one to two years later, and the page is refreshed when it does.